Improvement in car-axle boxes



PATENT OFFICE;

WILLIAM E. WlLCOX, OF CLEVELAND, OHIO.

IMPROVEMENT IN CAR-AXLE BOXES.

Specification forming part of Letters Patent No. l9l,820, dated June 12,1877; application filed April 6, 1877.

- To all whom it may concern:

Be it known that I, WM. E. WiLooX, of Cleveland, in the county of(Juyahoga and State of Ohio, have invented new and useful Improvementsin Railway-Gar Axle-Boxes, of whichthe following is a description,reference being had to the accompanying drawings, making a part of thisspecification, in which- Figure 1 is a side view of the axle-box andhousing. Fig. 2 is an end view of the axle and housing. Figs. 3, 4, 5,6, and 7- are detached sections, to which reference will be made.

Like letters of reference refer to like parts in the several views.

The nature of this invention relates to an axle-box for railway-cars.Said box consists of a system of anti-friction rollers, arranged withinthe shell of the box around the journal of the axle, and in which it hasits bearing. Certain of said rollers are provided with a collar, soarranged as to run in corresponding grooves in the associated rollers.The collars also run in a peripheral groove formed in the upper andlower sections of the axle-box, and

1 also in a groove around the axle, the purpose of which and theconstruction of the same are substantially as follows, it being animprovement of a journal-box for which a patent was granted to me June22, 1869.

In Fig. 1, A represents a section of the sill of a car or truck, towhich the axle-box is secured. Said box consists of two sections, B and0, connected to each" other by wings or plates D E-and bolts 21. 1, 2,3, and 4 (also indicated by the dotted lines b in Fig. 3) are rollers,each of which is provided with a collar, c. 5, 6, 7, and 8 are alsorollers, in each one of which is a groove, (11, Fig. 5. The arrangementof the rollers in respect to each other is such that the collars a ofthe one set of rollers run in the grooves of the other, as shown 5. Itwill be seen in said figure that the segment F embraces four rollers,two of which are grooved, and two have collars. Segment G has the samenumber and arrangement of rollers. The diameter of the two segments ofrollers is such as to tit into the bore of the axlebox, and the rollersare of a length equal to the length of the journal of the axle. Thegroup of rollers thus arranged in the segments do not touch each other.There being a space between one roller and the next in order. hencethere is no contact of the rollers, excepting the collars of the one inthe grooves of the others, and that only in the event of lateralpressure exerted upon them.

The pivots d of the rollers are held in slots e of the segments, asshown in Fig. 3; hence, the rollers have a free radial movement, for apurpose presently shown. H is the axle, around the journal of which is agroove, I, Fig. 7, in which the collars of the rollers run, as shown inFig. 4. Around the inside of the journalbox is cut a similar groove, J,Fig. 6. Said figure represents an inside view of section B of thejournal-box.

From the above description ofthe axle-box it will be obvious that whenthe journal is in the box it will be surrounded by the rollers, andbetween which it revolves, and at the same time the system of rollersrevolve around the axle, and also on their own axis. During thisrevolution of the axle and rollers, the collars c of the rollers 1, 2,3, and 4 run in the grooves of the intermediate rollers groupedtherewith, and at the same time the collars run in the groove in thejournal and in the peripheral groove J of the journal-box.

It will be obvious that, in consequence of the intervolving relation ofthe collars and the several grooves specified, there can be but littlelateral movement of the journal in its box. Hence, there will be littlewearing of the shoulders of the journal and ends of the box to producelooseness and end-chasing of the axle or journals thereof.

The face of the rollers run upon the face of the axle-box, and also uponthe face of the journal. Inasmuch as the rollers have a radial privilegeof movement, they will at all times be in contact with the journal andthe journalbox. The pivots whereby the rollers are attached to the ringsor segments thereof serve only to hold the rollers apart, so that theymay not run upon each other. The pivots do not support the weight of theaxle, that being borne directly by the rollers in their revolvingcontact with the journal-box.

The application of the journal-box to the car or truck will beunderstood by Fig. 1, in which, as above said, A represents the sill ofa car, from which is suspended the journalbox, by the bolts K K andbraces L L, made fast to a bar, M, underneath the axle-box. N and U arethe springs. Said springs are of rubber, the smaller ends of which areprevented trom spreading by caps P, in which they are inserted. Thelarger ends of the springs are also inserted in caps, consisting of adisk, Q, having a recess in either side for the admission of thesprings. The springs stand upon the wings or plates E, and which arethereto secured by the caps P. The boltholes in the springs pass througha boss. Said boss is let into the wing, and the cap is thereby retainedin place for an upright position of the springs. The hole in the springis larger than the bolt, to allow a lateral movement to the body of thecar. The ends of the journalbox are covered by plates A, which protectthe rollers and journal from dirt, dust, &c. The plates also serve tohold the sections of the box together.

To prevent the rings from leaving the pivots of the rollers, the ends ofthe pivots may be riveted down, forming a head outside of the IlllgS.

Access is had to the inside of the journalbox by removing the cap orsection 0 thereof. This may be done by taking out the bolts a, and bythe removal of the bar M by detaching the nuts N from the bolts andbraces K and L. In this way the axle can be taken out of the boxeswithout removing the entire box.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination of the grooved and collared rollers herein described,grooved axlejournal H, and grooved journal-box, as and for the purposeset forth.

2. The combination of the grooved and collared rollers herein described,radially-slotted rings, grooved axle-journal H, and grooved journal-box,all constructed and arranged to operate substantially as herein setforth.

WILLIAM E. WILOOX.

Witnesses W. W. WoRswIoK, J. H. BURRIDGE.

